Figure 7 Disassembly Of Pump Head And Driver; Figure 8 Check Of Axes And Rolls - M&C CSS Series Instruction Manual

15.3.2 CHANGE OF CONTACT PULLEYS AND SPRINGS

Switch off the mains;

Unscrew nuts of the pump head (metric wrench size 5.5)  and remove snap ring  from
motor shaft;

Figure 7 Disassembly of pump head and driver


Draw the pump head  out of the motor shaft

Take driver out of the pump head

The removal of the springs (4 pcs.) away from the driver is easily possible without the aid of
any tools. For this take spring out of the groove  near to the shaft bore.

Dismount roller axes and change contact pulleys. Take care that axes are not worn out by the
springs and have damaged the dent at the axes front end. In case of abrasion the axes have
to be changed (see Figure 8).
worn out
Figure 8 Check of axes and rolls
N O T E !
18
new
The springs may occur in different coulerings. This does not constitute
a quality defect. But make sure that the right spring strength is used.
This can be identified by the spring wire diameter. The „standard
version for Novoprene pump hoses" (part no. 90 P 1010) has a diameter
of 1.1 mm (approx. 0.043") and the strengthened version for FPM-,
Acidflex- or Masterflex-hoses" (part no. 90 P 1015) has a diameter of 1.2
mm (approx. 0.047").
CSS-M/W | 1.02.00
The dent prevents
rotation of the axis
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